CVE-2021-44647
MEDIUM severity · CVSS 5.5 · CWE-843
5.5CVSS MEDIUM
Summary
Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can cause a local denial of service.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://lua-users.org/lists/lua-l/2021-11/msg00204.html ↗
Additional information
- NVD record
- http://lua-users.org/lists/lua-l/2021-11/msg00204.htmlPatch
- http://lua-users.org/lists/lua-l/2021-11/msg00195.htmlAdvisory
- https://access.redhat.com/security/cve/cve-2021-44647Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
- https://security.gentoo.org/glsa/202305-23